混合式通风在坑探工程中的设计实践

Design practice of combined ventilation in pit excavation

对于长距离独头巷道掘进,施工作业面的通风十分重要。结合湖北某磷矿的坑探工程设计,通过理论计算,确定了风量、通风方式及通风设备选型,工程实践显示混合式通风方式对改善长距离独头巷道的通风质量效果显著。

For a long distance and single end tunnel excavation, the ventilation in construction working face is very important. In the tunnel engineering design in a phosphate mine in Hubei, air volume,ventilation method and ventilation equipment selection were determined by theoretical calculation. The engineering prac- tice showed that the combined ventilation mode would significantly improve the ventilation quality of a long distance and single end tunnel.